1e57b7901SRyder Lee // SPDX-License-Identifier: ISC
2e57b7901SRyder Lee /* Copyright (C) 2020 MediaTek Inc. */
3e57b7901SRyder Lee
4bbc1d415SShayne Chen #include <linux/firmware.h>
5e57b7901SRyder Lee #include "mt7915.h"
6e57b7901SRyder Lee #include "eeprom.h"
7e57b7901SRyder Lee
mt7915_eeprom_load_precal(struct mt7915_dev * dev)8495184acSRyder Lee static int mt7915_eeprom_load_precal(struct mt7915_dev *dev)
9495184acSRyder Lee {
10495184acSRyder Lee struct mt76_dev *mdev = &dev->mt76;
1183d229d2SShayne Chen u8 *eeprom = mdev->eeprom.data;
1283d229d2SShayne Chen u32 val = eeprom[MT_EE_DO_PRE_CAL];
1365dec62fSBo Jiao u32 offs;
14495184acSRyder Lee
15bbc1d415SShayne Chen if (!dev->flash_mode)
16bbc1d415SShayne Chen return 0;
17bbc1d415SShayne Chen
18495184acSRyder Lee if (val != (MT_EE_WIFI_CAL_DPD | MT_EE_WIFI_CAL_GROUP))
19495184acSRyder Lee return 0;
20495184acSRyder Lee
21495184acSRyder Lee val = MT_EE_CAL_GROUP_SIZE + MT_EE_CAL_DPD_SIZE;
22495184acSRyder Lee dev->cal = devm_kzalloc(mdev->dev, val, GFP_KERNEL);
23495184acSRyder Lee if (!dev->cal)
24495184acSRyder Lee return -ENOMEM;
25495184acSRyder Lee
2665dec62fSBo Jiao offs = is_mt7915(&dev->mt76) ? MT_EE_PRECAL : MT_EE_PRECAL_V2;
2765dec62fSBo Jiao
2865dec62fSBo Jiao return mt76_get_of_eeprom(mdev, dev->cal, offs, val);
29495184acSRyder Lee }
30495184acSRyder Lee
mt7915_check_eeprom(struct mt7915_dev * dev)31e57b7901SRyder Lee static int mt7915_check_eeprom(struct mt7915_dev *dev)
32e57b7901SRyder Lee {
33e57b7901SRyder Lee u8 *eeprom = dev->mt76.eeprom.data;
3483d229d2SShayne Chen u16 val = get_unaligned_le16(eeprom);
35e57b7901SRyder Lee
363b2f0286SShayne Chen #define CHECK_EEPROM_ERR(match) (match ? 0 : -EINVAL)
37e57b7901SRyder Lee switch (val) {
38e57b7901SRyder Lee case 0x7915:
393b2f0286SShayne Chen return CHECK_EEPROM_ERR(is_mt7915(&dev->mt76));
40beed8beaSBo Jiao case 0x7916:
413b2f0286SShayne Chen return CHECK_EEPROM_ERR(is_mt7916(&dev->mt76));
42*6bad146dSAlexander Couzens case 0x7981:
43*6bad146dSAlexander Couzens return CHECK_EEPROM_ERR(is_mt7981(&dev->mt76));
4499ad32a4SBo Jiao case 0x7986:
453b2f0286SShayne Chen return CHECK_EEPROM_ERR(is_mt7986(&dev->mt76));
46e57b7901SRyder Lee default:
47e57b7901SRyder Lee return -EINVAL;
48e57b7901SRyder Lee }
49e57b7901SRyder Lee }
50e57b7901SRyder Lee
mt7915_eeprom_name(struct mt7915_dev * dev)5199ad32a4SBo Jiao static char *mt7915_eeprom_name(struct mt7915_dev *dev)
5299ad32a4SBo Jiao {
5399ad32a4SBo Jiao switch (mt76_chip(&dev->mt76)) {
5499ad32a4SBo Jiao case 0x7915:
5599ad32a4SBo Jiao return dev->dbdc_support ?
5699ad32a4SBo Jiao MT7915_EEPROM_DEFAULT_DBDC : MT7915_EEPROM_DEFAULT;
57*6bad146dSAlexander Couzens case 0x7981:
58*6bad146dSAlexander Couzens /* mt7981 only supports mt7976 and only in DBDC mode */
59*6bad146dSAlexander Couzens return MT7981_EEPROM_MT7976_DEFAULT_DBDC;
6099ad32a4SBo Jiao case 0x7986:
6199ad32a4SBo Jiao switch (mt7915_check_adie(dev, true)) {
6299ad32a4SBo Jiao case MT7976_ONE_ADIE_DBDC:
6399ad32a4SBo Jiao return MT7986_EEPROM_MT7976_DEFAULT_DBDC;
6499ad32a4SBo Jiao case MT7975_ONE_ADIE:
6599ad32a4SBo Jiao return MT7986_EEPROM_MT7975_DEFAULT;
6699ad32a4SBo Jiao case MT7976_ONE_ADIE:
6799ad32a4SBo Jiao return MT7986_EEPROM_MT7976_DEFAULT;
6899ad32a4SBo Jiao case MT7975_DUAL_ADIE:
6999ad32a4SBo Jiao return MT7986_EEPROM_MT7975_DUAL_DEFAULT;
7099ad32a4SBo Jiao case MT7976_DUAL_ADIE:
7199ad32a4SBo Jiao return MT7986_EEPROM_MT7976_DUAL_DEFAULT;
7299ad32a4SBo Jiao default:
7399ad32a4SBo Jiao break;
7499ad32a4SBo Jiao }
7599ad32a4SBo Jiao return NULL;
7699ad32a4SBo Jiao default:
7799ad32a4SBo Jiao return MT7916_EEPROM_DEFAULT;
7899ad32a4SBo Jiao }
7999ad32a4SBo Jiao }
8099ad32a4SBo Jiao
81bbc1d415SShayne Chen static int
mt7915_eeprom_load_default(struct mt7915_dev * dev)82bbc1d415SShayne Chen mt7915_eeprom_load_default(struct mt7915_dev *dev)
83bbc1d415SShayne Chen {
84bbc1d415SShayne Chen u8 *eeprom = dev->mt76.eeprom.data;
85bbc1d415SShayne Chen const struct firmware *fw = NULL;
86bbc1d415SShayne Chen int ret;
87bbc1d415SShayne Chen
8899ad32a4SBo Jiao ret = request_firmware(&fw, mt7915_eeprom_name(dev), dev->mt76.dev);
89bbc1d415SShayne Chen if (ret)
90bbc1d415SShayne Chen return ret;
91bbc1d415SShayne Chen
92bbc1d415SShayne Chen if (!fw || !fw->data) {
93bbc1d415SShayne Chen dev_err(dev->mt76.dev, "Invalid default bin\n");
94bbc1d415SShayne Chen ret = -EINVAL;
95bbc1d415SShayne Chen goto out;
96bbc1d415SShayne Chen }
97bbc1d415SShayne Chen
98beed8beaSBo Jiao memcpy(eeprom, fw->data, mt7915_eeprom_size(dev));
99bbc1d415SShayne Chen dev->flash_mode = true;
100bbc1d415SShayne Chen
101bbc1d415SShayne Chen out:
102bbc1d415SShayne Chen release_firmware(fw);
103bbc1d415SShayne Chen
104bbc1d415SShayne Chen return ret;
105bbc1d415SShayne Chen }
106bbc1d415SShayne Chen
mt7915_eeprom_load(struct mt7915_dev * dev)107bbc1d415SShayne Chen static int mt7915_eeprom_load(struct mt7915_dev *dev)
108bbc1d415SShayne Chen {
109bbc1d415SShayne Chen int ret;
110beed8beaSBo Jiao u16 eeprom_size = mt7915_eeprom_size(dev);
111bbc1d415SShayne Chen
112beed8beaSBo Jiao ret = mt76_eeprom_init(&dev->mt76, eeprom_size);
113bbc1d415SShayne Chen if (ret < 0)
114bbc1d415SShayne Chen return ret;
115bbc1d415SShayne Chen
116bbc1d415SShayne Chen if (ret) {
117bbc1d415SShayne Chen dev->flash_mode = true;
118bbc1d415SShayne Chen } else {
119bbc1d415SShayne Chen u8 free_block_num;
120bbc1d415SShayne Chen u32 block_num, i;
12159b27a7dSRyder Lee u32 eeprom_blk_size = MT7915_EEPROM_BLOCK_SIZE;
122bbc1d415SShayne Chen
12359b27a7dSRyder Lee ret = mt7915_mcu_get_eeprom_free_block(dev, &free_block_num);
12459b27a7dSRyder Lee if (ret < 0)
12559b27a7dSRyder Lee return ret;
12659b27a7dSRyder Lee
12759b27a7dSRyder Lee /* efuse info isn't enough */
128bbc1d415SShayne Chen if (free_block_num >= 29)
129bbc1d415SShayne Chen return -EINVAL;
130bbc1d415SShayne Chen
131bbc1d415SShayne Chen /* read eeprom data from efuse */
13259b27a7dSRyder Lee block_num = DIV_ROUND_UP(eeprom_size, eeprom_blk_size);
13359b27a7dSRyder Lee for (i = 0; i < block_num; i++) {
13459b27a7dSRyder Lee ret = mt7915_mcu_get_eeprom(dev, i * eeprom_blk_size);
13559b27a7dSRyder Lee if (ret < 0)
13659b27a7dSRyder Lee return ret;
13759b27a7dSRyder Lee }
138bbc1d415SShayne Chen }
139bbc1d415SShayne Chen
140bbc1d415SShayne Chen return mt7915_check_eeprom(dev);
141bbc1d415SShayne Chen }
142bbc1d415SShayne Chen
mt7915_eeprom_parse_band_config(struct mt7915_phy * phy)14365dec62fSBo Jiao static void mt7915_eeprom_parse_band_config(struct mt7915_phy *phy)
144e57b7901SRyder Lee {
1454c430774SLorenzo Bianconi struct mt7915_dev *dev = phy->dev;
14683d229d2SShayne Chen u8 *eeprom = dev->mt76.eeprom.data;
1473eb50cc9SRyder Lee u8 band = phy->mt76->band_idx;
1484c430774SLorenzo Bianconi u32 val;
149e57b7901SRyder Lee
1503eb50cc9SRyder Lee val = eeprom[MT_EE_WIFI_CONF + band];
151f7fc2bbeSFelix Fietkau val = FIELD_GET(MT_EE_WIFI_CONF0_BAND_SEL, val);
152b4d093e3SMeiChia Chiu
153b4d093e3SMeiChia Chiu if (!is_mt7915(&dev->mt76)) {
154b4d093e3SMeiChia Chiu switch (val) {
155b4d093e3SMeiChia Chiu case MT_EE_V2_BAND_SEL_5GHZ:
156b4d093e3SMeiChia Chiu phy->mt76->cap.has_5ghz = true;
157b4d093e3SMeiChia Chiu return;
158b4d093e3SMeiChia Chiu case MT_EE_V2_BAND_SEL_6GHZ:
159b4d093e3SMeiChia Chiu phy->mt76->cap.has_6ghz = true;
160b4d093e3SMeiChia Chiu return;
161b4d093e3SMeiChia Chiu case MT_EE_V2_BAND_SEL_5GHZ_6GHZ:
162b4d093e3SMeiChia Chiu phy->mt76->cap.has_5ghz = true;
163b4d093e3SMeiChia Chiu phy->mt76->cap.has_6ghz = true;
164b4d093e3SMeiChia Chiu return;
165b4d093e3SMeiChia Chiu default:
166b4d093e3SMeiChia Chiu phy->mt76->cap.has_2ghz = true;
167b4d093e3SMeiChia Chiu return;
168b4d093e3SMeiChia Chiu }
16996c77770SFelix Fietkau } else if (val == MT_EE_BAND_SEL_DEFAULT && dev->dbdc_support) {
1703eb50cc9SRyder Lee val = band ? MT_EE_BAND_SEL_5GHZ : MT_EE_BAND_SEL_2GHZ;
171b4d093e3SMeiChia Chiu }
17245a8b67aSFelix Fietkau
173e57b7901SRyder Lee switch (val) {
17445a8b67aSFelix Fietkau case MT_EE_BAND_SEL_5GHZ:
1754c430774SLorenzo Bianconi phy->mt76->cap.has_5ghz = true;
176e57b7901SRyder Lee break;
17745a8b67aSFelix Fietkau case MT_EE_BAND_SEL_2GHZ:
1784c430774SLorenzo Bianconi phy->mt76->cap.has_2ghz = true;
179e57b7901SRyder Lee break;
180e57b7901SRyder Lee default:
1814c430774SLorenzo Bianconi phy->mt76->cap.has_2ghz = true;
1824c430774SLorenzo Bianconi phy->mt76->cap.has_5ghz = true;
183e57b7901SRyder Lee break;
184e57b7901SRyder Lee }
1854c430774SLorenzo Bianconi }
1864c430774SLorenzo Bianconi
mt7915_eeprom_parse_hw_cap(struct mt7915_dev * dev,struct mt7915_phy * phy)18765dec62fSBo Jiao void mt7915_eeprom_parse_hw_cap(struct mt7915_dev *dev,
18865dec62fSBo Jiao struct mt7915_phy *phy)
1894c430774SLorenzo Bianconi {
190a7ec8bcfSShayne Chen u8 path, nss, nss_max = 4, *eeprom = dev->mt76.eeprom.data;
19165dec62fSBo Jiao struct mt76_phy *mphy = phy->mt76;
1923eb50cc9SRyder Lee u8 band = phy->mt76->band_idx;
1934c430774SLorenzo Bianconi
19465dec62fSBo Jiao mt7915_eeprom_parse_band_config(phy);
195e57b7901SRyder Lee
196a7ec8bcfSShayne Chen /* read tx/rx path from eeprom */
19765dec62fSBo Jiao if (is_mt7915(&dev->mt76)) {
198a7ec8bcfSShayne Chen path = FIELD_GET(MT_EE_WIFI_CONF0_TX_PATH,
19965dec62fSBo Jiao eeprom[MT_EE_WIFI_CONF]);
20065dec62fSBo Jiao } else {
201a7ec8bcfSShayne Chen path = FIELD_GET(MT_EE_WIFI_CONF0_TX_PATH,
2023eb50cc9SRyder Lee eeprom[MT_EE_WIFI_CONF + band]);
20365dec62fSBo Jiao }
20465dec62fSBo Jiao
205a7ec8bcfSShayne Chen if (!path || path > 4)
206a7ec8bcfSShayne Chen path = 4;
207e57b7901SRyder Lee
20865dec62fSBo Jiao /* read tx/rx stream */
209a7ec8bcfSShayne Chen nss = path;
210f7fc2bbeSFelix Fietkau if (dev->dbdc_support) {
21165dec62fSBo Jiao if (is_mt7915(&dev->mt76)) {
212de147cc2SNicolas Cavallari path = min_t(u8, path, 2);
213a7ec8bcfSShayne Chen nss = FIELD_GET(MT_EE_WIFI_CONF3_TX_PATH_B0,
214f7fc2bbeSFelix Fietkau eeprom[MT_EE_WIFI_CONF + 3]);
2153eb50cc9SRyder Lee if (band)
216a7ec8bcfSShayne Chen nss = FIELD_GET(MT_EE_WIFI_CONF3_TX_PATH_B1,
21765dec62fSBo Jiao eeprom[MT_EE_WIFI_CONF + 3]);
21865dec62fSBo Jiao } else {
219a7ec8bcfSShayne Chen nss = FIELD_GET(MT_EE_WIFI_CONF_STREAM_NUM,
2203eb50cc9SRyder Lee eeprom[MT_EE_WIFI_CONF + 2 + band]);
2214c430774SLorenzo Bianconi }
2224c430774SLorenzo Bianconi
223*6bad146dSAlexander Couzens if (!is_mt798x(&dev->mt76))
224a7ec8bcfSShayne Chen nss_max = 2;
22565dec62fSBo Jiao }
22665dec62fSBo Jiao
227a7ec8bcfSShayne Chen if (!nss)
228a7ec8bcfSShayne Chen nss = nss_max;
229a7ec8bcfSShayne Chen nss = min_t(u8, min_t(u8, nss_max, nss), path);
23099ad32a4SBo Jiao
231a7ec8bcfSShayne Chen mphy->chainmask = BIT(path) - 1;
2323eb50cc9SRyder Lee if (band)
23399ad32a4SBo Jiao mphy->chainmask <<= dev->chainshift;
234a7ec8bcfSShayne Chen mphy->antenna_mask = BIT(nss) - 1;
23565dec62fSBo Jiao dev->chainmask |= mphy->chainmask;
23699ad32a4SBo Jiao dev->chainshift = hweight8(dev->mphy.chainmask);
237e57b7901SRyder Lee }
238e57b7901SRyder Lee
mt7915_eeprom_init(struct mt7915_dev * dev)239e57b7901SRyder Lee int mt7915_eeprom_init(struct mt7915_dev *dev)
240e57b7901SRyder Lee {
241e57b7901SRyder Lee int ret;
242e57b7901SRyder Lee
243e57b7901SRyder Lee ret = mt7915_eeprom_load(dev);
244bbc1d415SShayne Chen if (ret < 0) {
245bbc1d415SShayne Chen if (ret != -EINVAL)
246e57b7901SRyder Lee return ret;
247e57b7901SRyder Lee
248bbc1d415SShayne Chen dev_warn(dev->mt76.dev, "eeprom load fail, use default bin\n");
249bbc1d415SShayne Chen ret = mt7915_eeprom_load_default(dev);
250bbc1d415SShayne Chen if (ret)
251bbc1d415SShayne Chen return ret;
252bbc1d415SShayne Chen }
253bbc1d415SShayne Chen
254bbc1d415SShayne Chen ret = mt7915_eeprom_load_precal(dev);
255e57b7901SRyder Lee if (ret)
256e57b7901SRyder Lee return ret;
257e57b7901SRyder Lee
25865dec62fSBo Jiao mt7915_eeprom_parse_hw_cap(dev, &dev->phy);
25998df2baeSLorenzo Bianconi memcpy(dev->mphy.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR,
260e57b7901SRyder Lee ETH_ALEN);
261e57b7901SRyder Lee
26298df2baeSLorenzo Bianconi mt76_eeprom_override(&dev->mphy);
263e57b7901SRyder Lee
264e57b7901SRyder Lee return 0;
265e57b7901SRyder Lee }
266e57b7901SRyder Lee
mt7915_eeprom_get_target_power(struct mt7915_dev * dev,struct ieee80211_channel * chan,u8 chain_idx)267e57b7901SRyder Lee int mt7915_eeprom_get_target_power(struct mt7915_dev *dev,
268e57b7901SRyder Lee struct ieee80211_channel *chan,
269e57b7901SRyder Lee u8 chain_idx)
270e57b7901SRyder Lee {
27183d229d2SShayne Chen u8 *eeprom = dev->mt76.eeprom.data;
272a226ccd0SShayne Chen int index, target_power;
2731c2d366eSShayne Chen bool tssi_on, is_7976;
274e57b7901SRyder Lee
275e57b7901SRyder Lee if (chain_idx > 3)
276e57b7901SRyder Lee return -EINVAL;
277e57b7901SRyder Lee
278e57b7901SRyder Lee tssi_on = mt7915_tssi_enabled(dev, chan->band);
2791c2d366eSShayne Chen is_7976 = mt7915_check_adie(dev, false) || is_mt7916(&dev->mt76);
280e57b7901SRyder Lee
281e57b7901SRyder Lee if (chan->band == NL80211_BAND_2GHZ) {
2821c2d366eSShayne Chen if (is_7976) {
2831c2d366eSShayne Chen index = MT_EE_TX0_POWER_2G_V2 + chain_idx;
2841c2d366eSShayne Chen target_power = eeprom[index];
2851c2d366eSShayne Chen } else {
2861c2d366eSShayne Chen index = MT_EE_TX0_POWER_2G + chain_idx * 3;
28783d229d2SShayne Chen target_power = eeprom[index];
288e57b7901SRyder Lee
289a226ccd0SShayne Chen if (!tssi_on)
29083d229d2SShayne Chen target_power += eeprom[index + 1];
2911c2d366eSShayne Chen }
292ae146683SShayne Chen } else if (chan->band == NL80211_BAND_5GHZ) {
293ae146683SShayne Chen int group = mt7915_get_channel_group_5g(chan->hw_value, is_7976);
294a226ccd0SShayne Chen
2951c2d366eSShayne Chen if (is_7976) {
2961c2d366eSShayne Chen index = MT_EE_TX0_POWER_5G_V2 + chain_idx * 5;
2971c2d366eSShayne Chen target_power = eeprom[index + group];
2981c2d366eSShayne Chen } else {
2991c2d366eSShayne Chen index = MT_EE_TX0_POWER_5G + chain_idx * 12;
30083d229d2SShayne Chen target_power = eeprom[index + group];
301a226ccd0SShayne Chen
302a226ccd0SShayne Chen if (!tssi_on)
30383d229d2SShayne Chen target_power += eeprom[index + 8];
304e57b7901SRyder Lee }
305ae146683SShayne Chen } else {
306ae146683SShayne Chen int group = mt7915_get_channel_group_6g(chan->hw_value);
307ae146683SShayne Chen
308ae146683SShayne Chen index = MT_EE_TX0_POWER_6G_V2 + chain_idx * 8;
309ae146683SShayne Chen target_power = is_7976 ? eeprom[index + group] : 0;
3101c2d366eSShayne Chen }
311e57b7901SRyder Lee
312a226ccd0SShayne Chen return target_power;
313e57b7901SRyder Lee }
314f1d96236SRyder Lee
mt7915_eeprom_get_power_delta(struct mt7915_dev * dev,int band)315ecb187a7SShayne Chen s8 mt7915_eeprom_get_power_delta(struct mt7915_dev *dev, int band)
316f1d96236SRyder Lee {
31783d229d2SShayne Chen u8 *eeprom = dev->mt76.eeprom.data;
3181c2d366eSShayne Chen u32 val, offs;
319ecb187a7SShayne Chen s8 delta;
3201c2d366eSShayne Chen bool is_7976 = mt7915_check_adie(dev, false) || is_mt7916(&dev->mt76);
321f1d96236SRyder Lee
322ecb187a7SShayne Chen if (band == NL80211_BAND_2GHZ)
3231c2d366eSShayne Chen offs = is_7976 ? MT_EE_RATE_DELTA_2G_V2 : MT_EE_RATE_DELTA_2G;
324ae146683SShayne Chen else if (band == NL80211_BAND_5GHZ)
3251c2d366eSShayne Chen offs = is_7976 ? MT_EE_RATE_DELTA_5G_V2 : MT_EE_RATE_DELTA_5G;
326ae146683SShayne Chen else
327ae146683SShayne Chen offs = is_7976 ? MT_EE_RATE_DELTA_6G_V2 : 0;
3281c2d366eSShayne Chen
3291c2d366eSShayne Chen val = eeprom[offs];
330ecb187a7SShayne Chen
331ae146683SShayne Chen if (!offs || !(val & MT_EE_RATE_DELTA_EN))
332f1d96236SRyder Lee return 0;
333f1d96236SRyder Lee
334ecb187a7SShayne Chen delta = FIELD_GET(MT_EE_RATE_DELTA_MASK, val);
335ecb187a7SShayne Chen
336ecb187a7SShayne Chen return val & MT_EE_RATE_DELTA_SIGN ? delta : -delta;
337f1d96236SRyder Lee }
338f1d96236SRyder Lee
339ecb187a7SShayne Chen const u8 mt7915_sku_group_len[] = {
340ecb187a7SShayne Chen [SKU_CCK] = 4,
341ecb187a7SShayne Chen [SKU_OFDM] = 8,
342ecb187a7SShayne Chen [SKU_HT_BW20] = 8,
343ecb187a7SShayne Chen [SKU_HT_BW40] = 9,
344ecb187a7SShayne Chen [SKU_VHT_BW20] = 12,
345ecb187a7SShayne Chen [SKU_VHT_BW40] = 12,
346ecb187a7SShayne Chen [SKU_VHT_BW80] = 12,
347ecb187a7SShayne Chen [SKU_VHT_BW160] = 12,
348ecb187a7SShayne Chen [SKU_HE_RU26] = 12,
349ecb187a7SShayne Chen [SKU_HE_RU52] = 12,
350ecb187a7SShayne Chen [SKU_HE_RU106] = 12,
351ecb187a7SShayne Chen [SKU_HE_RU242] = 12,
352ecb187a7SShayne Chen [SKU_HE_RU484] = 12,
353ecb187a7SShayne Chen [SKU_HE_RU996] = 12,
354ecb187a7SShayne Chen [SKU_HE_RU2x996] = 12
355ecb187a7SShayne Chen };
356